Paper-stock shredder.



F. E. SAECKER.

PAPER STOCK SHREDDER.

APPLICATION FILED AUG-I1, 1913.

1,224,966. Patented May 8, 1917.

' s SHEETS-SHEET 1.

i f 5 5 /7 A 45 w m NnRRls PETERS co. meow-ma. wAsNmc you. n c

F. E SAECKER.

PAPER STOCK SHREDDER APPLICATION FILED nus. II, 1912.

1,224,960. Patented May 8, 1917.

3 SHEETS-SHEET 2 b h 0 a Q 3 3 7 v my Q x! f l 1 y l l g t 3% i 1 1 N Jk y l g a Q 7% w l H 1 T 3 5 Q I I 1 I i 1 w' 12 III 1 V1 J 1 I I; I 5L" 1 f I a 1 Q v I I .1 r' l Q11 A. l l i k 1 mm n 1 Q 3 g) 133:3 I %M Im 43 M5; 0 O

"I x f];

F. E SAECK'ER. PAPER STOCK SHREDDER. APPLICATION FILED AUGJI. 1913.1,224,960. Patented May 8,1917.

3 SHEETS-SHEET 3.

FRANK E. SAEGKEB, OIE APPLETON, WISCONSIN, ASSIGNOR TO APPLE'ION MACHINECOMPANY, OF APPLETON, WISCONSIN.

PAPER-STOCK SI-IREDDER.

Application filed August 11, 1913.

To all whom it may concern:

Be it known that I, FRANK E. SAEGKER, a citizen of the United States,and resident of Appleton, in the county of Outagainie and State oflVisconsin, have invented certain new and useful Improvements in Paper-Stock Shredders; and I do hereby declare that the following is a full,clear, and exact description thereof.

My invention consists in what is herein particularly set forth withreference to the accompanying drawings and pointed out in the claims ofthis specification, its object being to provide a simple, economical,strong, durable and eflicient machine organized to eliminate friction onthe stock fed to shedding saws thereof, whereby free travel of saidstock is insured and clogging or bunchmg up of the same avoided,especial attention being called to a pair of driven shredding-rollersconstituting parts of said machine and having disk elements thereofsidewise to the saws.

Figure 1 of the drawings represents a side elevation of one of myimproved paperst-ock shredders having parts thereof broken away;

Fig. 2, a plan view of the same having parts thereof broken away;

Fig. 3, a sectional view of a portion of the machine indicated by line3-3 in Figs. 2 and 4c, and

Fig. 4:, a sectional .view of a fragment of the machine indicated byline 1-4: in Figs. 1 and 3.

Referring by numerals to the drawings, 5 indicates'each of the sidestandards of the shredder-frame mounted on the axles 6 of the wheels 7the shredder being preferably portable, and an electric motor 8, or someother description of motor may be employed as part of the machine.Arranged on upper cross-bars 9, 9, of the frame is a table 10 havingside guards 10 for the stock, and the standards of said frame areprovided with bearings for the journals of rollers 11, 12, upon which anendless apron conveyer '13 is trained to traverse the table. Thebearings for the journals of the roller 11 are adjustable to provide fortension regulation of the conveyer apron and the frame-standards arealso provided with bearings for an arbor 14 upon which the circularshredder-saws 15 of the machine are Specification of Letters Patent.

Patented m 8, 1917.

Serial No. 784,149.

Another pulley 19 is fast on the saw-arbor and a belt 20 connects thispulley with a pulley 21 fast on a shaft 22 for which the frame standardsare provided with bearings, working-tension of the belt 20 beingdetermined by an idler 23 carried by a hand'lever 24 having fulcrumconnection with the crossbar 5) of the frame. Fast on the shaft 22 1s aspur-pinion 25 in mesh with a spur-wheel 26 fast on the journal of theapron-roller 12, and another spur-wheel 27 on the same jour nal is in'mesh with a spur-pinion 28 fast on the arbor of a pulp-supportingroller 29 under the shredder saws, the latter spurpinion being also inmesh with a similar pinion 30 fast on the arbor of anotherpulpsupporting roller 31 companion to the one aforesaid. Theframe-standards of the shredder are provided with bearings for thearbors of said pulp-supporting rollers, and fast on each of theserollers at suitable intervals apart are projecting disks 32 sidewise tothe saws 15 that have a rasping action as they rotate to shred the stockfed thereto, by the aforesaid conveyer, over a ledger plate 33 indetachable connection with a crosspiece 3 1 of the frame.

Brackets 85 connected to the forward ends of the frame-standards areconnected by a pintle-rod 36 engaging the knuckle-end of a semi-circularhousing 37 for the saws.

Fast on the shaft 22 at the main drivingbelt side of the machine is asprocket-wheel 38 connected by a link-belt 39 with a similar wheel 1-0fast on a spindle 41 for which a bracket-end of the crossbar 9 isprovided with a bearing. Another sprocketwheel 42, fast on the spindlea1, is connected by a linkbelt 13 with a similar wheel 14: fast on thearbor of a pressure roller 15 parallel to the apron-roller 12, saidarbor being engaged with supporting arms -16. One of the arms is looseon the spindle 11 and the other arm is similarly disposed on apivot-bolt 17 extending through another bracket-end of the crossbar 9.Shackled to the arms 46 are the upper ends of rods 18 similarlyconnected at their lower ends to cranks 49 fast on a shaft 50 for whichthe frame-standards are provided with bearings, and a cranked footlever51 is fast on said shaft to enable the operator of the machine to varythe pressure of the roller 45 on the paper stock fed by the conveyer tothe shredding-saws.

From the foregoing it will be understood that motion is transmitted fromthe driven saw-arbor to the forward apron-roller 12, the rollers 29, and31, and the pressure-roller 45, when the idler 23 is in normal positionover the belt 20, but when the handle end of the lever 24 is depressedsaid idler is lifted to stop the operation of the conveyer,pressure-roller and anti-frietion rollers.

It is noted that by the arangement of gearing, the saws 15 rotate at amuch greater speed than. the pulp sru'iporting rollers 29 and 31, andthus the rollers serve substantially in the nature of a concave toprovide for a maximum action of the pulp by the saws. At the same timethe rollers are c011- tinuously rotat ahle and thus provide for asweeping action of the saws over their entire peripheries between theirdisks 32 whereby the rollers are kept clean to pre vent possibleclogging and at the same time the disks of the rollers project slightlybetween the saws to prevent clogging of pulp therebetwcen. As indicatedmore particularly by the arrows in Fig. 3 it is noted that the innermostroller rotates in a counter clockwise direction, while the outer rollerrotates in a clockwise direction to thus pro- Gopies of this patent maybe obtained for five cents each,

vide a maximum retention of the pulp in contact with the saws.

I claim:

1. In a paper stock shredding machine, the combination of a feedingmechanism, a driven arbor, a series of eircularshredding saws on thearbor to which the stock is fed, and a plurality of driven rollersdisposed under the saws to engage the pulp and hold it against saidsaws.

2. In a paper stock shredding machine, the combination of a feedingmechanism, a driven arbor, a series of circular shredding saws on thearbor to which the stock is fed, a pair of rollers disposed under thesaws for holding pulp thereadjaeent, and means for driving the rollersin opposite directions preventing passage of pulp therebetween.

3. In a paper stock shredding machine, the combination of a feedingmechanism, a driven arbor, a series of circular shredding saws on thearbor to which the stock is fed, a plurality of driven rollers disposedunder the saws, and disks on said rollers extend.- ing between the saws.

In testimony that I claim the foregoing I have hereunto set my hand atAppleton in the county of Outagamie and State of VVisconsin in thepresence of two witnesses.

FRANK E. SAECKER.

Witnesses T. J. I-Innwoon, A. H. VVIoKnRsBnRe.

by addressing the Commissioner of Patents.

Washington, I). C.

